Irrational fears
Irrational fear we all have. However, we often deny it. I think it’s one of the things that makes us human, though. Does an animal worry the way people do? Worries are usually us jumping to conclusions or exaggerating circumstances. When my dog barks out the window at the mailman, is he doing either of these? To worry the way people do, a dog would need self-consciousness and an awareness of the past and the future.